A typical high from smoking marijuana lasts about 2 hours. However, psychomotor impairment can persist, even after the initial high effects are gone. More on duration of action and effects of marijuana here.
marijuana drug testing
Experts don’t know how long the synthetic cannabinoids in K2 stay in your system. But some can be detected within 72 hours of use. More on the metabolism of K2 ingredients here.
Synthetic weed shows up on specialized urine-based tests for up to 3 days after use. More on synthetic marijuana drug testing here.
The half life of THC depends on potency, frequency of use and mode of administration. But generally, the THC found in marijuana can stay in the body for days or weeks after use. More on how long THC stays in the system here.